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Customizable Packages
It is NamibHubs policy to respond to emails within 18 working hours (Our
usual office hours are from 08:00-17:00 but you may receive
correspondence much earlier and later than that.) We have put auto-responders on
the above mentioned account ensuring that
you know that your email has arrived and will be attended to.
Jackal
(a) N$25 - 100 MB Web Hosting
(b) N$40 - 100 MB Web Hosting, Top Level Domain
(b) N$10 - 100 MB Extra Web Space
(c) N$20 - 300 MB Extra Web Space
(d) N$30 - 500 MB Extra Web Space
Leopard
(a) N$35 - 300 MB Web Hosting
(b) N$50 - 300 MB Web Hosting, Top Level Domain
(b) N$10 - 100 MB Extra Web Space
(c) N$20 - 300 MB Extra Web Space
(d) N$30 - 500 MB Extra Web Space
Lion
(a) N$45 - 500 MB Web Hosting
(b) N$55 - 100 MB Web Hosting, Top Level Domain
(b) N$10 - 100 MB Extra Web Space
(c) N$20 - 300 MB Extra Web Space
(d) N$30 - 500 MB Extra Web Space
Volume Discounts
10+ Accounts 20% Discount (i.e. N$50 equals N40.00)
20+ Accounts 30% Discount (i.e. N$50 equals N$35.00)
40+ Accounts 40% Discount (i.e. N$50 equals N$30.00)
Prepaid Discounts
15% Discount for Contracts Prepaid Annualy
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Bandwidth
NamibHub servers / services have a contention ration of 1:1. What this means is that every customer will receive 100% of of his local bandwidth from our servers. Any bandwidth limitations experienced locally are the result of international routing and hops. A hop is the intermediate connection in a string of connections linking two network devices.On the Internet, for example, most data packets need to go through several routers before they reach their final destination. Each time the packet is forwarded to the next router, a hop occurs. The more hops, the longer it takes for data to go from source to destination. You can see how many hops it takes to get to another Internet hostby using the "ping" or "traceroute (tracert in Windows)" utilities.
NamibHub does not impose any bandwidth restriction but we do monitor this to avoid potential abuse. Our servers presently run at 10 Megabyte/Second (Or 10,485,760 Megabit/Second). Actual bandwidth has been testted confirmed at these speeds confirmed. Should you quetion this, feel free to ask us for a demonstration. Network speeds will be upgraded to 100 Megabytes per Second (Gigabit Speeds) when the need arises.
Under normal conditions, each client has access to 10-20 Gigabyte/month (or 10,485,760,000,000 - 20,971,520,000,000 bits/Month). This is called band and essentially the amount of data that can be transmitted in a fixed amount of time. For digital devices, the bandwidth is usually expressed in bits per second(bps) or b per second. For analog devices, the bandwidth is expressed in cycles per second, or Hertz (Hz). Providing customers with all this bandwidth does not suggest that we tollerate its abuse and clients actively and obviously abusing our services will be suspended. NamibHub site policies do apply.
Presently our email server can easily handle over 400 simultainous email connections running at 256 Kilobit/Second (This is about 25 Kilobyte/Second). This will be increased tenfold if and when required. Internet bandwidth usage is logged on a daily basis to establish irregularities and obvious abuse. Spam, pornography, terrorism and other offencive and negative activities will not be tollerated.
Clients are warned that local bandwidth is being influenced by routing and International as well as local ISP such as Telecom Namibia, MTC, MWEB etc.) International bandwith especially effects services such as IMAP which heavily rely on the stability and capability of the such services. It should be noted that NamibHub ha no control over national or initional bandwidth or connectivity and can therefore not be held responsible. Namibia does not have the infrastructure for hosting dedicated servers.
We hope that their will be significant improvements when the West African Cable System (WACS) is completed in 2011. Telecom Namibia joined a global consortium, which, is busy building a $600-million cable system to extend faster international connectivity to countries in Africa at cheaper tariff. Lets hope that things improve when this is in place. The network is expected to be ready by 2011. The cable network will cover South Africa, Namibia, Angola, the two Congos, Cameroon, Nigeria, Togo, Ghana and Cote d’Ivoire in the African continent. The network will also cover Cape Verde, Canary Islands in Atlantic Ocean and Portugal and Britain in Europe.
resently most, if not all internet is routed through South Africa. Personally we have tested our servers in Chicago at speeds of 10 Megabyte per seond fom and to the UK. As the new West African cable system will terminate in the UK, this should bring much improved speeds for our services, especially cince the route will be much shoter in terms hops.
The contract for the 14,000 km cable network project was awarded to Alcatel-Lucent Sumbarine Networks. There are also several associated companies like Angola Telecom, Broadband Infraco, Cable and Wireless, MTN, Telecom Namibia and Portugal Telecom and Tata Communications. The cable network project is named the West African Cable System. The fibre optic submarine network will provide 3.84 terabits per second of bandwidth, with points of landing, or global gateways in four countries. -
Multi Protocol Support
POP - Post Office Protocol (POP)
POP is an application-layer Internet standard protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection. POP and IMAP (Internet Message Access Protocol) are the two most prevalent Internet standard protocols for e-mail retrieval.
SMTP - Simple Mail Transfer Protocol (SMTP)
SMTP is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks. While electronic mail servers and other mail transfer agents use SMTP to send and receive mail messages, user-level client mail applications typically only use SMTP for sending messages to a mail server for relaying.
IMAP - Internet Message Access Protocol (commonly known as IMAP, and previously called Internet Mail Access Protocol, Interactive Mail Access Protocol, and Interim Mail Access Protocol)
IMAP is an Application Layer Internet protocol operating on port 143 that allows an e-mail client to access e-mail on a remote mail server. The idea is pretty much the same as Webmail without the burden of html interface. IMAP supports both on-line and off-line modes of operation. E-mail clients using IMAP generally leave messages on the server until the user explicitly deletes them. This and other facets of IMAP operation allow multiple clients to access the same mailbox.
Webmail (WorldClient) - Webmail (or Web-based e-mail)
Webmail is an e-mail service intended to be primarily accessed via a web browser, as opposed to through a desktop e-mail client (such as Microsoft Outlook, Mozilla's Thunderbird, or Apple Inc.'s Mail). A major advantage of webmail over application-based e-mail is that a user has the ability to access their inbox from any Internet-connected computer around the world. However, the need for Internet access is also a drawback, in that one cannot access old messages when not connected to the Internet.
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SSL Encryption
Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols that provide security and data integrity for communications over networks such as the Internet. TLS and SSL encrypt the segments of network connections at the Transport Layer end-to-end.
This is generally used by insitutions (i.e. banks,
credit card companies) requiring
security and privacy. The protocol is designed to prevent
eavesdropping, tampering and message forgery. NamiHub has ully
implemented SSL
encryption methods to ensure client email services, passwords
and data remain fully confidential when used from insecure locations such as
internet cafes, airports etc.
Cryptology protocols will not work with transparent proxy servers (Due to
end-end encryption) which ensures that internet backbone and service
providers cannot breach
our clients' privacy using transparent proxy servers and similar
technologies. To ensure privacy, clients should always ensure that
their browser indicates that their connection is encrypted which is
usually indicated with a lock. It should also be noted that while
our services are secure, those of other service providers are not.
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Anti-Virus
Emails are scanned using some of the world’s best rated and most advanced anti-virus solutions. Anti-Virus software will be renewed and reviewed at least once per annum to ensure best performance and reliability. Presently we use, recommend and sell Bitdefender Internet Security which is rated amongst the very best.
Our IT company, Impulse Computer Services also provides sales, services and support for all Bitdefender products but we can justas well provide service and support for any other product. These include but are not limited to Kasperski, Syamantec or Norton Anti-Virus, Webroot Anti-Virus etc. As we don't specialize in other products, extra import considerations (i.e. Transport) may apply.
Over 20 years of inhouse IT experience (Starting in 1987 with protection against Stoned Virus etc.) means that we have seen best sellers come and go. We used to sell products from Mcafee, Webroot, Symantec (Norton), Trend Micro etc. but in consideration of what is best for us and our customers, we moved on and are presently using Bitdefender.
While Bitdefender is excellent, no single solution can ever be 100% effective. It remains customers responsibiliy to protect themselves my not browsing websites considered as virus and malware havens etc. and by not opening spam emails which clearly don't have the clients best interests at heart. -
Anti-SPAM
Emails that are considered possible spam will be tagged. Emails identified as definate SPAM will be removed. SPAM is identified using a combination of Heuristics and Bayesian scanning techniques.
Our server uses the following anti-spam techniques:-
Bayesian spam filtering
Bayesian spam filtering uses techniques of statistical e-mail filtering. Particular words have particular probabilities of occurring in spam email and in legitimate email. For instance, most email users will frequently encounter the word "Viagra" in spam email, but will seldom see it in other email. The filter doesn't know these probabilities in advance, and must first be trained so it can build them up. To train the filter, the user (Our Client) must manually indicate whether a new email is spam or not. For all words in each training email, the filter will adjust the probabilities that each word will appear in spam or legitimate email in its database. For instance, Bayesian spam filters will typically have learned a very high spam probability for the words "Viagra" and "refinance", but a very low spam probability for words seen only in legitimate email, such as the names of friends and family members.
After training, the word probabilities (also known as likelihood functions) are used to compute the probability that an email with a particular set of words in it belongs to either category. Each word in the email contributes to the email's spam probability, or only the most interesting words. This contribution is called the posterior probability and is computed using Bayes' theorem.
Then, the email's spam probability is computed over all words in the email, and if the total exceeds a certain threshold (say 95%), the filter will mark the email as a spam. Email marked as spam can then be automatically moved to a "Junk" email folder.
The initial training can usually be refined when wrong judgments from the software are identified (false positives or false negatives). That allows the software to dynamically adapt to the ever evolving nature of spam.
NamibHub combines the results of both Bayesian sand heuristics (pre-defined rules about the contents, looking at the message's envelope, etc.), resulting in even higher filtering accuracy. -
Heuristic Scoring Options
Heuristic scanning uses experience-based techniques that help mail servers identify and solve the spam problems by learning and discovery. The heuristic method is used to rapidly come to a solution (Detecting spam) that is hoped to be close to the best possible answer (If a message is spam or not). Heuristics are "rules of thumb", educated guesses, intuitive judgments or simply common sense.
In more precise terms, heuristics stand for strategies using readily accessible, though loosely applicable, information to control problem solving.
Using a scoring system, our server accumulates a score based on various criteria. Included in the scoring system are black listings by various Anti-SPAM Servers (Servers that confirm or deny a DNS entry as found in the sender's address to be a source of SPAM), reverse DNS lookups (See if a Sender's email domain refers to the IP address his/her email is coming from) etc. our server is not forced to come to a conclusion based on single criteria (i.e. one DNS Blacklist server saying it is).A message is spam if its score is greater or equal to [XX] (0.0-500.0)
The value that we specify is the required spam threshold that NamibHub will compare to each message's spam score. Any message with a spam score greater than or equal to this amount will be considered spam, and then the appropriate actions will be taken based on other Spam Filter settings.
If we have the spam score threshold set to 5 and the rejection threshold set to 10, then any message with a spam score that is greater than or equal to 5 but less than 10 will be considered spam and handled according to the rest of our spam filter settings. Any message with a spam score greater than or equal to 10 will be rejected by NamibHub during the delivery process.
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Backups
Our server is being backed up on a daily basis using a some of the most extreme, secure and highly accurate Linux based backups systems available to date.
Backups are made on our online servers in Chicago, Illinois in the USA (Allowing speedy and immediate recovery) but we do also keep offline backups in Namibia. Backups to Namibia are done using SSL transport protocols and automation. These services serve as preventative measure in case of a server crash, virus attack, natural disaster etc. allowing us to restore the server to the latest state or even move our entire infrastructure to another center on the Globe.
Backup are considered extremely important for us and are one of our mayor selling points. NamibHub is considering setting up a secondary server system at a completely separate data centre and continent which would allow us full redundancy in the event of a national disaster at one of our data centers. An example of such an disaster is an attack on the Trade Centers in Ne York now better known as 911. Hosting mirrored services a continent away ensures that no single terrorist attack or natural disaster (i.e flooding, hurricane) etc. should be able to bring our services to a standstill.
Exact backups schedules will not be announced t promote security. All we can say is that backups are done daily and that these are highly reliable and secure.
NB: While NamibHub does provide recovery services, these are not free unless the recovery is a mistake of our own (i.e. Server Crash). Recovery will be charged at N$150 per account per incident. -
Content Filtering
Emails are scanned when they pass though the system. This means
customers can be ensured that emails
stored and passing though our system will
be clean of any malware and virusses. Existing emails which are kept
online are rescanned at regular interval using multiple
scanners.
NamibHubs site policy
reserves the right to remove emails or content containing
viruses, malware and spyware and
executable attachments (As these might be malicious).
Clients can set up their own content filters using the Webmail
(WorldClient) Interface.
We are also busy implement a "Frequently asked Question" section which
will explain to clients how to use some of these services. For clients
that want personal training, we offer our personal services though
Impulse Computer Services.
Content filtering allows our server to move, copy
and delete your email when it arrives based on user pre-defined rules.
Content filtering also works great in combination with folder sharing,
which is a feature that is very much unique to our services
All emails send by a specific user or from a specific domain
could be filtered into a specific folder etc.
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Message Signatures
WebMail clients can edit and use his/her own text or html compliant
email signature using the Webmail interface. This allows auto insertion
when a user writes a new email under his/her webmail.
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Folder Creation
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Folder, Contacts, Notes and Task Sharing
Our server allows users to share data with other accounts on our server, even between different hosted domains. This makes it extremely easy for users to copy correspondence into a folder that is shared with other users for reading and/or revision. Users that are given access to shares can be restricted in terms of type of access (i.e Read Only, Edit or Full Access) by the person that shares his/her facilities.
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WebMail Plain Text and HTML message composition
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Spell Check / Dictionary
Our Webmail facilities allow you to do spell checking in a variety of languages.
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Domain Hosting, Registration and Transfer
Clients will by default be registered with full ownership over their own domains, unlike some other domain registration services which we have encountered in
We encourage companies to register their own domains which they can then use in combination with our email and web hosting services. We charge a one time fee for setting up our email server to accommodate each domain. Using a individualized domain is considered more professional than hosting and account under an ISP's name or as par of one of the free services like HotMail, Yahoo, Google etc. and means the client has full control over availability of email accounts, aliases etc.
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Problems Sending or Receiving Emails
We are aware that many emails in Namibia get lost due to unknown reasons. Unfortunately at such time their is no post office to blame. Still it is very dissatisfying for customers to find out their email never reached its destination without ever being able to determine who is to blame
Our email server puts us in the unique position to trace exact cause of problems due to its detailed logging system. Should you have concerns about emails not arriving etc., you may feel free to to email us to investigate the issue. It is important that you must provide us with the sender's and destination email address(es), subject, date and time an email was send allowing us to trace our logs and establish what went wrong. Clients should note that we handle thousands of emails every day which might make it extremely problematic tracing problems without aforementioned information. Queries should be send to whereismydmail@namibhub.info. Clients should get a response within 48 hours. We will work on the implementation of a automated system if this is at all possible. Due to security, we cannot just simple send out logs at will as that may put our server and services at risk. Some of the information as listed in the example below has also been altered to ensure the privacy of our the actual client as well as the location of our mail queues.
Example of Level of Logging Support on Incoming Email picked up via POP Protocol:
Mon 2009-08-24 15:24:55: ----------
Mon 2009-08-24 15:24:55: Routing message (inbound queue): d:\namibhub\queues\inbound\md50000164664.msg
Mon 2009-08-24 15:24:55: * From: confidential@yahoo.com; Recipient: confidential@domainx.org; Size: 3245; Message: d:\namibhub\queues\local\md50000002032.msg
Mon 2009-08-24 15:24:55: * Subject:
Mon 2009-08-24 15:24:55: * Message-ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>
Mon 2009-08-24 15:24:55: ----------
Mon 2009-08-24 15:24:57: Spam Filter processing d:\namibhub\queues\local\md50000002032.msg...
Mon 2009-08-24 15:24:57: * Message return-path: confidential@yahoo.com
Mon 2009-08-24 15:24:57: * Message from: confidential@yahoo.com
Mon 2009-08-24 15:24:57: * Message to: confidential@domainx.org
Mon 2009-08-24 15:24:57: * Message subject:
Mon 2009-08-24 15:24:57: * Message ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>
Mon 2009-08-24 15:24:57: Start SpamAssassin results
Mon 2009-08-24 15:24:57: 4.90 points, 5.00 required
Mon 2009-08-24 15:24:57: * 0.0 HTML_MESSAGE BODY: HTML included in message
Mon 2009-08-24 15:24:57: * 2.9 TVD_SPACE_RATIO BODY: TVD_SPACE_RATIO
Mon 2009-08-24 15:24:57: * 1.3 MISSING_SUBJECT Missing Subject: header
Mon 2009-08-24 15:24:57: * 0.6 EMPTY_MESSAGE Message appears to have no textual parts and no
Mon 2009-08-24 15:24:57: * Subject: text
Mon 2009-08-24 15:24:57: * 0.1 RDNS_NONE Delivered to trusted network by a host with no rDNS
Mon 2009-08-24 15:24:57: End SpamAssassin results
Mon 2009-08-24 15:24:57: ----------
Mon 2009-08-24 15:24:57: Content Filter processing d:\namibhub\queues\local\md50000002032.msg...
Mon 2009-08-24 15:24:57: * Message return-path: confidential@yahoo.com
Mon 2009-08-24 15:24:57: * Message from: confidential@yahoo.com
Mon 2009-08-24 15:24:57: * Message to: confidential@domainx.org
Mon 2009-08-24 15:24:57: * Message subject:
Mon 2009-08-24 15:24:57: * Message ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>
Mon 2009-08-24 15:24:57: Start Content Filter results
Mon 2009-08-24 15:24:57: * Matched 0 of 2 active rules
Mon 2009-08-24 15:24:57: End of Content Filter results
Mon 2009-08-24 15:24:57: ----------
Mon 2009-08-24 15:24:57: Routing message (local queue): d:\namibhub\queues\local\pd50000002032.msg
Mon 2009-08-24 15:24:57: * From: confidential@yahoo.com; Recipient: confidential@domainx.org
Mon 2009-08-24 15:24:57: * Subject:
Mon 2009-08-24 15:24:57: * Message-ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>
Mon 2009-08-24 15:24:57: * Size: 3894; Message: d:\namibhub\users\domainx.org\confidential\md50000001798.msg
Mon 2009-08-24 15:24:57: ---------- -
Additional Services
Through our IT company, Impulse Computer Services, we are in the unique position to offer you sales, service and support for IT related services. -
More...
NamibHub continually strives to improve on its offerings to attract new and keep existing customers happy. To be able to make such improvements, we rely on the support and contributions (Prompt payments) by customers. Clients are welcome to relay new ideas and suggest ways we can improve our service. Clients are also encouraged to let us know if things are not as they should be. We are always willing to listen to clients concerns, dreams and wishes. We will air new ideas on our web site and leave it to clients to vote for the implementation thereof.